body{background-color: rgb(247,246,244);}

.top-title {
    height: 40px;
    line-height: 40px;
    position: fixed;
    border-bottom: 1px solid #e7e7e7;
    width: 100%;
    z-index: 999;
    background: #FFF;
    color: #000000;
}
.top-title .go-back {
    position: absolute;
    height: 40px;
    width: 40px;
}
.top-title .go-back svg {
    width: 20px;
    fill: currentColor;
    height: 40px;
    margin-left: 10px;
}
.top-title h4 {
    text-align: center;
    font-weight: normal;
    margin: 0;
    line-height: inherit;
    font-size: 16px;
}
